Just two weeks after he was rescued from a shelter "Bear," a 150-pound Mastiff, saved his owners right back.

When a blaze broke out during the night at her Long Island home, Carol Swinson's fire alarms failed to go off. It was Bear, who jumped on her to wake her, who saved Swinson and her 9-year-old grandson.

Swinson says she was startled at first because Bear had been good about following the rule of staying off her bed.

A very grateful Swinson says, "I'll do right by that dog for the rest of my life."